Get AccuWeather alerts right in your browser!
Enable Notifications
Next 5 Days
  • Current Weather

    4:19 PM

    68°
    Relative Humidity: 43%
    Yesterday Temp: 70°
    RealFeel: 65°
    Cloudy
    • Ragweed Pollen
      • Ragweed Pollen
      • Grass Pollen
      • Tree Pollen
      • Mold
      • Dust & Dander
      • Air Quality Index
  • Today

    May 20

    66° Hi
    Clouds breaking; cool
    • Low
    • ragweed pollen levels
    • Ragweed Pollen
    • Low
    • Grass Pollen: Low
    • Ragweed Pollen: Low
    • Tree Pollen: Low
    Day Details
  • Tomorrow

    May 21

    62° Hi
    Clouds and sun; cool
    • Low
    • ragweed pollen levels
    • Ragweed Pollen
    • Low
    • Grass Pollen: Low
    • Ragweed Pollen: Low
    • Tree Pollen: Low
    Day Details
  • Wednesday

    May 22

    66° Hi
    Partly sunny; cool
    • Low
    • ragweed pollen levels
    • Ragweed Pollen
    • Low
    • Grass Pollen: Low
    • Ragweed Pollen: Low
    • Tree Pollen: Low
    Day Details
Next 6 Hours
  • 4PM

    5/20

    66°
    Partly sunny
    Precip: 7%
  • 5PM

    5/20

    65°
    Mostly sunny
    Precip: 7%
  • 6PM

    5/20

    63°
    Mostly sunny
    Precip: 7%
  • 7PM

    5/20

    61°
    Mostly sunny
    Precip: 5%
  • 8PM

    5/20

    59°
    Mostly clear
    Precip: 1%
  • 9PM

    5/20

    57°
    Mostly clear
    Precip: 1%

Rancho Cucamonga Pollen Levels May 20

  • Extreme
  • Very High
  • High
  • Moderate
  • Low
  • Tree Pollen

    Low

  • Ragweed Pollen

    Low

  • Mold

    Low

  • Grass Pollen

    Low

Allergies Live Feed

Mon. Pollen

Mon. Dust & Dander

Mon. Wind Maps